使用log4net-1.2.0-beta8
在项目的AssemblyInfo.cs文件中设置
[assembly: log4net.Config.DOMConfiguratorAttribute(Watch=true)]
添加并编辑项目配置文件（默认为App.config），内容如下：
1<configuration>
2<configsections>
3<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"></section>
4</configsections>
5<log4net>
6<appender name="stdout" type="log4net.Appender.ConsoleAppender">
7<layout type="log4net.Layout.PatternLayout">
8<!--conversionPattern value="[%d %l] %n%m%n" /-->
9<param name="ConversionPattern" value="[%d %l] %m%n"/>
10</layout>
11</appender>
12<appender name="file" type="log4net.Appender.FileAppender">
13<param name="File" value="log.txt"/>
14<param name="AppendToFile" value="true"/>
15<layout type="log4net.Layout.PatternLayout">
16<param name="ConversionPattern" value="[%d %l] %m%n"/>
17</layout>
18</appender>
19<root>
20<level value="ALL"></level>
21<appender-ref ref="stdout"></appender-ref>
22<appender-ref ref="file"></appender-ref>
23</root>
24<logger name="*">
25<level value="ALL"></level>
26<appender-ref ref="stdout"></appender-ref>
27<appender-ref ref="file"></appender-ref>
28</logger>
29</log4net>
30</configuration>
程序代码中使用如下语句
...
using log4net;
using log4net.Config;
...
private static ILog log = LogManager.GetLogger(typeof(TestClass));
...
log.Info("This is a test!");
ok!收工